This is where the confusion usually lies. Many assume that version numbers starting with "1." belong to the original 2011 game (which ended at version 1.9.32). However, Bethesda reset the version numbering for the Special Edition. Therefore:
Without the correct version of SKSE, your mods will either refuse to load, crash on startup, or behave erratically. skse for skyrim 1.1.47
using 7-Zip or WinRAR. Inside, you will see: This is where the confusion usually lies
. This specific version number does not exist in the official Steam release history for Skyrim Special Edition (SSE) crash on startup
The most reliable way to get SKSE working is to update Skyrim Special Edition to the latest version.
Switch the language to something else (like French) and let it download a small file →right arrow